I applied through a recruiter. The process took 2 months. I interviewed at Pinterest in Jan 2015
Interview
Started with a small online coding challenge, 24 hours to complete 2 problems, both pretty easy and just testing basic algorithms and object-oriented design. After a few weeks was a 1 hour technical interview, with just one small coding problem, a "reverse look-and-say" that was not very hard but had a few interesting edge-cases to account for. After a few more weeks was 1 more technical interview, again an hour long with one question about filtering a paragraph of text for given buzz-words. This problem was a bit harder, but also not too bad (though I blanked during the interview and only solved it afterwards). I didn't get past this interview.
Overall the process was very straight-forward. I was paired with interviewers that were alumni from my university, so there was plenty to small talk about. The technical questions were fun and interesting, and only moderately difficult. Just a standard interview process, but great people and an obviously awesome company. Wish I got the internship :P
Interview questions [1]
Question 1
When designing a search engine, after the user inputs the buzz-words that he's searching for, you would want to give the search results along with a few snippets of text taken from the webpage results that show the webpages' relevance to the buzzwords. Thus, design an algorithm to...
Given a paragraph of text and a few buzz-words, find the smallest snippet of text in that paragraph that contains all the buzz-words.
I had to do an OA. The OA was 4 leetcode style questions. Upon completing the OA I was offered the opportunity to do my final interviews int he form of a super day
I applied through college or university. I interviewed at Pinterest (Ciudad de Mexico)
Interview
Te ponen 4 codigos para resolver en una plataforma con cronometro y luego te pasan a una entrevista con alguien sw developer, ahi tienes que codificar en tiempo real con cronómetro también
The interviewer showed up 30 mins late for the interview. He then could not get his camera to work, so I had to wait another 20 minutes before the actual interview started.